please explain :) thanks a bunch

Consider the transportation table below The solution displayed was obtained by performing some iterations of the transportation method on this problem Source Denver Destination Yuma 58 Miami Supply Houston 25 25 St. Louis $4 35 SC 10 35 SG 45 Chicago Demand 35 ta 35 35 39 The total cost of the current solution provided = $ Using stepping stone method to perform an improvement iteration, the improvement index for the unused cell will be Houston - Yuma Houston - Miami = St Louis-Miami Chicago - Denver =) DEL 2 Enter your answer in each of the answer boxes 11:16 AM ^4 12/3/2000 Houston-Yumna Houston - Miami St Louis-Miami Chicago-Denver Based on the improvement index for each of the unused cells in the first improvement iteration unused coll Houston - Miami should get dignment of units The improved transportation flow will be Note You must enter a stwortent in every general the shipment To From Denver Yuma Miami Supply Houston 52 SE IS 33 SL Louis 56 35 S Chicago The total cost of the improved solutions Enter your answer in each of the answer boxes 11:16 AM PS E